63421413 has 16 divisors (see below), whose sum is σ = 93205056. Its totient is φ = 38039040.

The previous prime is 63421409. The next prime is 63421417. The reversal of 63421413 is 31412436.

It is an interprime number because it is at equal distance from previous prime (63421409) and next prime (63421417).

It is not a de Polignac number, because 63421413 - 2² = 63421409 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63421417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6706 + ... + 13107.

It is an arithmetic number, because the mean of its divisors is an integer number (5825316).

Almost surely, 2^63421413 is an apocalyptic number.

It is an amenable number.

63421413 is a deficient number, since it is larger than the sum of its proper divisors (29783643).

63421413 is a wasteful number, since it uses less digits than its factorization.

63421413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19924.

The product of its digits is 1728, while the sum is 24.

The square root of 63421413 is about 7963.7562117383. The cubic root of 63421413 is about 398.7909596522.

Adding to 63421413 its reverse (31412436), we get a palindrome (94833849).

The spelling of 63421413 in words is "sixty-three million, four hundred twenty-one thousand, four hundred thirteen".